<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script>
			var person = {name:"nick",age:12};
			alert(person.name);
			person.sex = "男";
			alert(person.sex);
		</script>
	</head>
	<body>
	</body>
</html>
